Ye Ming took over the remote sensing controller modified from Xbox One and quickly became familiar with the operation under Peng Xiaofei's introduction.
"The remote sensing module is not bad. Who adjusted it?"
"The captain is responsible."
Ye Ming looked back at the captain Li Dongsheng and saw that Li Dongsheng and the deputy captain in charge of structural design Jiang Yongliang were discussing something seriously in front of the notebook.
Peng Xiaofei said with a smile: "This is the only advantage of our robots, but RC competitions are now becoming more and more fully automated. Unlike the Mecha Masters competition, which relies on remote sensing and operation, Captain Li's skills have been buried. "
Ye Ming nodded: "Well... But if you have skills, you won't be afraid of anything. Aren't we here to learn too?"
"Having said that, I still want to win a prize so that I can keep my graduate school." Peng Xiaofei felt a little emotional and a little depressed.
He is Ye Ming's roommate. Although they have only been together for half a year, he also knows that Ye Ming has started the "student master" mode since the middle of last semester - he stopped playing games, stopped reading novels, and even I stopped touching movies and went to the library and study room every day. I suddenly felt like I was in my senior year of high school.
As long as Ye Ming maintains this kind of learning state, it is a sure thing that he will be admitted to graduate school.
But he is different, and it doesn't mean that he, Peng Xiaofei, is worse than Ye Ming - everyone went to the same school based on their college entrance examination scores, how much difference can there be?
He just felt that it would be meaningless to behave like a senior in high school even though he was already in college.
It can only be said that everyone chooses to spend their college career differently.
At this time, Li Dongsheng waved to the two of them.
…
"Our team doesn't have enough people." Li Dongsheng smiled and looked at Ye Ming: "Ye Ming, you just said you planned to major in software engineering. Have you learned Python in advance?"
"I learned it." Ye Ming was not modest, but nodded directly: "I know a little bit of C, C++, and Python."
Li Dongsheng was obviously happy: "Okay, then the two of us will work on the upper machine. Xiaofei, you and Tao Zheng will work on the lower machine together and be responsible for the control at the same time. Is that okay?"
Ye Ming and Peng Xiaofei looked at each other and nodded at the same time.
The so-called host computer refers to a computer that can directly issue control commands, such as a personal computer. The lower computer is the system that executes commands, such as PLC, microcontroller, etc.
For example, if a computer is connected to a printer, then the computer is the host computer, and the printer's main control chip system is the slave computer.
The upper computer in the team is naturally the laptop in everyone’s hands, and the lower computer is the robot’s STM32 microcontroller.
"Ye Ming, let me introduce you to him while I have some time."
Because Ye Ming didn't bring his laptop, Li Dongsheng pulled him to sit in front of his laptop: "I just saw you and Xiao Fei try our robot. Can you understand what's wrong with our robot?"
Li Dongsheng asked, but found that Ye Ming didn't answer for a long time. He tilted his head in confusion and saw Ye Ming staring at his screen with a strange expression on his face.
——On his screen, a certain frame of "I spent a month making a robotic arm that can play table tennis" was paused.
This screen is the source code interface of Python.
"You haven't seen this video?" Li Dongsheng asked curiously.
"Uh..." Ye Ming suppressed his complicated emotions and nodded honestly: "I've seen it..."
This video took him a day to edit! And it was cut into extremely fine pieces...
"Captain, I think there may be two problems with our robot. One is that the visual robustness is low, and the other is that the obstacle surmounting function is not good." In order to prevent Li Dongsheng from asking about the content of the video again, Ye Ming answered quickly.
Robustness is actually the transliteration of Robust - but when used in the field of robotics, it does not refer to how durable the robot is, but to its ability to resist interference and emergencies.
Low visual robustness means that if there is slight interference from other objects, the robot cannot make accurate judgments, leading to mission failure.
Snapped! Li Dongsheng slapped his thigh: "That's right! These are the two! That's why I want to see Brother Xiao's solution." As he said this, Li Dongsheng also looked at the computer screen.
——Brother Trumpet, this is the nickname given by netizens to the author of "I spent a month making a robotic arm that can play table tennis", because this guy's name is very funny.
It's called "tick-tick-tick."
"It's a pity that this guy talked about open source, but there was no movement at all. He didn't even post a news." Li Dongsheng's face was filled with regret.
Ye Ming's eyes widened when he heard this.
Feelings...are you waiting for yourself?
At this time, the voice of deputy captain Jiang Yongliang sounded next to him: "Captain, don't even think about it. Just look at it."
Ye Ming and Li Dongsheng turned their heads at the same time: "What's wrong with Zhihu?"
"Brother Trumpet is on the hot list."
…
…
Zhihu, a Q&A platform for sharing knowledge. In the early years, there were a large number of answers such as "I make a million a year", "I live in New York and just got off the plane", "I go to a top 3 university", "I work in the top 500" and so on... so it was jokingly called B Hu.
Pretending to be B's B.
Ye Ming also has it in his mobile phone, but he hasn't opened it for a long time.
Clicking on the hot list and scrolling down a few times, a piece of "What do you think of the robotic arm work of the author of Station B, 'Tick Tick Tick Tick'?" Compared with the genius boy, who is more powerful? 》The question came into view instantly.
Ye Ming felt his face heat up, and he quickly walked aside with his cell phone.
This question has only been trending for a while, and there are only a few dozen answers, but the top answer already has hundreds of likes.
"What to see with? See with your eyes.
After taking a look at the video, the author claimed that he independently completed a six-axis robotic arm in one month. He didn't show his face during the whole process, and I won't mention the dubbing. I thought he was shy. But whether it's designing a PCB or coding, there's no process, it's just a display of the finished product.
Of course, he didn't forget to take a picture of the machining process.
But here comes the question, does the robotic arm need machining capabilities?
It is said that the cyber thimble has raised him up, but the low-end version is manual.
These days, I don’t even act anymore. "
Ye Ming took a deep breath, his heartbeat began to accelerate, and he clicked on the comment that should be answered.
Not surprisingly, the more than twenty replies were all supportive of the respondent.
He gritted his teeth and continued to slide to the next answer.
"Interest related, a former member of the RC team of a certain 985 school, responsible for the electronic control part.
Maybe you have no idea about the function of 'robotic arm playing table tennis'. Let's put it this way, according to the accuracy and ability shown in the video, replace the table tennis ball with a badminton, then it will be the brightest kid in the 2015 National Robot TV Competition - —In 2015, the badminton robot of the University of Electronic Science and Technology of China also used human binocular vision. It was one of the strongest and then swept across the army.
But please note that Dianke’s robot is not a robotic arm with six degrees of freedom! It's just a three-axis robotic arm installed on an automatic program-controlled vehicle to swing the racket!
Therefore, I do not believe that the author can independently complete a mechanical arm that can surpass the badminton robot in comprehensiveness in such a short period of time. "
…
"Look, what I said before was right, right?" Vice-captain Jiang Yongliang saw that Li Dongsheng had also clicked on the Zhihu page. He leaned back on his chair and said with a smile, "I told you to let the bullets fly for a while."
Li Dongsheng frowned deeply, and after a few seconds of silence, he took a long breath.
As a junior student, he also hangs out on Zhihu, and he also knows that those who pretend to be cool on Zhihu cannot be trusted, but those who troll...
Generally speaking, there are two brushes.
In particular, some of the people who praised it were very reasonable and well-founded.
He is also a member of the old RC team who has been playing games since his freshman year. Now he has taken over the responsibilities of captain, so he naturally knows how much engineering is required for each function.
Take the guy who made the robotic arm at Station B as an example. Although he used his spare time, he worked on it for four months - don't think that four months of spare time is not as good as one month of concentrated time. Sometimes doing projects and debugging requires inspiration.
Not to mention that machining, plate making, and purchasing all take a lot of time.
Therefore, Li Dongsheng also felt that the trumpet brother could not have been made by one person. At least the relevant algorithms and codes were not original to him.
Otherwise, why would he say open source but not open it?
"Well, it's okay. If we can't learn from it, we can do it ourselves." Li Dongsheng quickly laughed, looked at the time and stood up: "Let's go, let's have dinner first!"
As captain, of course he has to show his fighting spirit.
Just then, a voice suddenly sounded.
"Captain, leave the visual positioning and motion trajectory prediction algorithms of the ball-throwing robot to me."
Li Dongsheng turned around and saw Ye Ming holding his mobile phone and walking slowly over.
His face was a little red.
"Are you okay?"
Jiang Yongliang looked at this newcomer who had only joined for less than half a day, with confusion on his face.
Although I know that this guy has the ability to teach math questions for postgraduate entrance exams to juniors, this ability of "being a problem solver in a small town" is really nothing in the field of engineering.
"I think... I should be able to do it." Ye Ming took a deep breath and exhaled slowly.
Seeing everyone looking at him at this moment, he suddenly felt a little nervous.
"The little guy you are talking about who makes the robotic arm...is me."
——He came to Robot Team not only for tasks, but also to make use of the resources in the team.
For example, there is a 3D printer next to it, as well as a series of tools and equipment.
Besides, the table tennis robotic arm was originally made by him.
From design to coding, from machining to assembly and polishing.
His family originally ran a machine processing workshop in the town!
Even without a system, he learned how to turn screws three years ago!
What is he afraid of admitting?
